Interchangeable wheel of motor-cars.



M. FISCHER.

INTBBOHANGEABLE WHEEL OF MOTOR CARS.

APPLIOATION FILED SEPT. 11, 1912.

1,099,435. Patented June 9,1914;

f W T VFJJES! UNITED STATES MARTIN FISCHER, OF ZURICH, SWITZERLAND,ASSIGNOR TO PATENT OFFICE.

MOTOR AND GEAR INTERCHANGEABLE WHEEL OF MOTOReCARS.

Specification of Letters Patent.

Patented J une 9, 1914.

Application filed September 17,1912. Serial No. 720,880.

To all whom it maygconoern Be it known that I, MARTIN FISCHER, a citizenof Switzerland, residing at Zurich, Switzerland,have' invented new anduseful Improvements in Interchangeable Wheels of Motor-Cars, of which.the following is a specification.

This invention is to' produce a means for securely locking'and readilyunlocking the securing cap on an interchangeable wheel hub, particularlywith the object of affording means for locking. the interchangeablewheels of motor car hu s in a manner certain to prevent accidentalrelease and comprising devices in construction well protected and easyto handle.

In the construction of motor car wheels, it

has become a practice to havethe hub arranged to remain on theaxle andto have the wheel center formed as a separate hub or nave to fit therelatively permanent hub, and to employ means forrigidlIy securing theseparate hub to the relative y permanent hub, and to readily detach thecomplete. This takes the place of replacing tires in case of puncture onthe roa De vices for holding such detachable wheels have been suggested,and some are in use, but the means of looking to prevent accidentaldetachment is either insecure or of complicated construction, orincludes projections gr loles liable to breakage or derangement irt.

This inventioninvolves simple means and an arrangement and combinationwhich is not in ordinaryuse liable to any derangement.

In the accompanying drawings showing.

one form of the embodiment of my construction,-Figure 1. is a section ofthe hub with wheel and cap in position. Fig. 2. is a side elevation ofthe hub with cap. in position and operating wrench. Fig. 3. is anelevation, part section, of lock. Fig. 4. is a side view of look. I

In the drawings, 1 is cap with an angular head at the outer end andflared inner end forming a clamping flange which is recessed on itsinner face and in the recess, the inner side is serrated or toothed, andadapted to receive a locking pin 12.

On the relatively permanent hub 5 is an inner flange and a "collar 6 andshank 7 and threaded end 8. The wheel portion comsame when itis desiredto replace the. wheel and tire prises the spokes with an inner flange 4,and an outer flange 3. At one point in the circumference there is arecess in the spokes in flange 4', adapted to receive the lock shown nFigs. 3 and 4. In this recess is the lookng lever 11 with locking pin 12completely mclosed and protected under the flange 3, while the pivot 9projects. through the flange and is attached to it and operates finger10 with notch-14 near its end. In the recessthere is also a sprin 13operating on the end of the arm 11 tending to force that arm with" itspin. 12 radially inward, so that the pm engagesl-he serrations ornotches on the inner side of the cap flan e 1.

The operating wrench has t e usual angular opening to engage the end ofthe cap and attac ed to the hub 15, is a loose ring 16 with a projectingpin 17.

The operation of this device is obvious from the drawings and consistsin applying the wrench to the securing cap 1, and rotating the a loosering 16 so that the pin presses the end of the finger l0 outward untilthe pin 17 rests in the notch 14. In this position the lock is pivotedat 9 so that pin 12 is thrown radially outward against the spring 13 andthe pm 12 is out of engagement with the notches on the locking capflange. In that position the wrench is operated to screw up the cap 1 tothe desired degree, securely clamping the wheel to the semi-permanenthub, and when sufficiently tight, the loose ring 16 is rotated slightlyreleasing pin ,17 fromnotch 14 whereupon spring 13 forces arm 11 inwardso that pin 12 engages one of the notches on the'inner face of thelocking cap, locks the cap against unscrewing. Conversely, when it isdesired to remove the cap, the wrench is applied, loose ring 16 rotatinguntil pin 17 engages finger 10, and forces it outward thereby releasingthe locking pin 12, after-which the wrench can readily operate tounscrew the cap 1.

It will be noted that the operation of the lock involves completelyinclosed parts. That is the serration and locking pin are all protectedby the flange 3 or by the flared inner flange of cap 1, with theexception that the operating finger 10 is on the outside. This finger10, however, owing to my construction, can be of such form as to holdsecurely against the cap flange 1, and not protrude in any way 0 ring achance for engagement with obstacles. In a sense it presents a flushconstruction that cannot catch on anything and' covers all openings,thereby pre venting the entry of dust and dirt to interfere withsatisfactory operation.v

This invention issusceptible to various modifications from theparticular form in which I :have shown and described it, but

What I claim and desire to secure by Letters Patent is v 1. Incombination in a detachable wheel,', a relatively permanent hub,- aremovable Wheel hub, a locking cap having a flared inner end constitutina clamping flange, a recess on the face 0 the clamping flange, notchesin one side of. the recess, a locking pin-movable toward and from centerof the removable wheelhub entirely protected by a flange plate on saidhub and the clamping flange, a pivot supported in said hub flange plate,an' operating finger on the outside of said pivot adapted in its normalpo- 7 sition to rest in contact withthe edgeof the capflange. a

2. In combination ina detachable wheel, a securing cap having. an-innerflaring end constituting a clamping flange a detachable i whel hub, aface plate on the outer. side of the detachable wheel hub,a lock forsaid securing cap, a pivot for said lock carried by said face plate, arecess in said hub. under said faceplate a locking pin and arm in saidrecess whereby the arm" and hub to the relatively permanent hub,lockspring are entirely protected byisaid .face plate, and are adaptedto move toward and from the hub center, a single member of' the lockingmeans located outside of said face a plate and attached to said pivotfor operating the .lock for the purpose described.

3. In combination in a detachable wheel, a relatively permanent hub, aremovable wheel hub, a face plate onthe. outer side of the hub, a hubcap; flange adapted'to-engage said faceplateto lock the removable ingmeans to securesaid hub 'caplflange, including a lever and springlocated inva recess in the removable hub and, 'pr,otected by said faceplate, a pivot jforsaid lever in said face plate, means on the other endof said lever projecting throughthe facev ,plate adapted to move toward.andja way .from the hub center to engage a -recess on the-inner side" ofthe cap flange, and a lever outside of said face plate adapted to movetoward and away fromfthe hub center and to normally lie against theouter,

periphery of the cap flange for the'piirpose described.

In testimony two subscribingwitnesses.

Witnesses; v a Jommnn's AU ND, J Gumo Apnea.

whereofI have signed my 6o name to this specification inflthe presence"of v MARTIN FISCHER, a a

